Danfoss Compressor SH295B7ALJ

08/11/2020

The design points of capillary refrigeration system

1. On the high-pressure side of the refrigeration system, do not install a liquid reservoir, and try to reduce its effective volume on the premise that the condenser can contain all the refrigerant.

08/14/2020

How to choose cold storage cable

In the process of cold storage installation, cables are an indispensable material. Although we can see a lot in the market, these cables and wires are also classified in different ways, and the power they can support is also different.

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/14/2020

How to use common refrigeration tools

1. Pressure gauge operation method:<br></br> Generally, in the refrigeration industry nowadays, a compound double meter is used to measure the pressure of the refrigeration system, charge refrigerant, and vacuum, etc. It is widely used.

08/21/2020

Selection method of refrigeration host

The chillers used in the ice storage system need to adapt to the air conditioning and ice storage conditions, so they are often called dual-condition chillers. The available types are piston chillers,

05/21/2025

Have you figured out the "enthalpy" and "entropy" of the refrigeration system?

1. Enthalpy<br></br> It is a kind of energy, used to indicate the thermal state parameter of the state of the refrigerant, it represents the size of the total energy of the refrigerant; namely:

08/05/2020

Do you know all the protective devices for air-cooled chiller refrigeration compressors

In order to prevent the air-cooled chiller from running uninterruptedly for 24 hours, causing the compressor to operate under high load, the electromagnetic switch is not good, the overcurrent caused by the shaft holding,

07/20/2020

For the failure of the constant temperature and humidity test chamber, the early inspection is very important

For the failure of the constant temperature and humidity test chamber, the early inspection is very important What should I do if there is an abnormality in the constant temperature and humidity test chamber, can we only wait for the after-sales personnel to come to check? Of course not. Only if the user has mastered some basic troubleshooting techniques, then he can solve it by himself and save his time.

08/18/2020

How to prevent freezing in winter heat pump What should I do if the unit is frozen

With the promotion and subsidies of the government, before the 2020 heating season, Detroit installed about 100,000 air-energy heat pumps on a large scale to replace traditional coal-fired heating.

09/02/2020

Brief analysis of the reasons for the reduction of the displacement of the screw air compressor

"Air compressors are general-purpose mechanical equipment. They are now widely used in various fields. Due to the motor power and the length of the main engine shaft, the air compressor has a large and small displacement.